Trolley-wire or other conductor for electric traction.



Patented Dec. 24, I90l.

G. E. HEYL-DIA. I TBOLLEYWIBE. OR OTHER CONDUCTOR FOB ELECTRIC TBAGTIDIL.

(Application filed June 8, 1901.)

(No Model.)

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"UNITED STATES PATENT OFFiCE.

GEORGE EDWARD HEYL-DIA, or WARRINGTON, ENGLAND.

TROLLEY-WIRE R OTHER CONDUCTOR FOR ELECTRIC TRACTION.

SPECIFICATION forming part of Letters Patent No. 689,615, dated December 24, 1901.

Application filed Tune 3, 1901. Serial No. 62,981. (No model.)

To all whom it may concern:

Be it known that LGnonen EDWARD HEYL DIA, engineer, a subject of the King of Great Britain, residing at Warrin gton,in the county of Lancaster, England, have invented certain new and useful Improvements in or Relating to Trolley-.Wire. or other Conductors for Electric Traction, (for which application has been made in England under No. 21,722, dated November 30, 1900,) of which the following is a specification.

This invention relates to trolley-wire and other flexible suspended conductors for electric traction, and has for its object to impart greater strength to the conductor and in the case of overhead curves to-reduce the nu mber of sustaining-wires.

The invention consists in combining with the copper conductor, awire, rib, or web of employed in the form of a rib or web, the copper portion or conductor proper may be rolled or formed onto either or both edges of the web, as shown in Figs. 2 and 3, respectively, and said edge or edges may be slightly thickened,preferably with a rounded rail-like head, as shown, to enable the copper to embrace and be securely held to it. 7

By my invention the fixing of overhead curves is greatly facilitated, particularly where the steel portion of the combined conductor has the form of a web, as before described, as the rail-like cross-secti0n thus obtained, in addition to the strength obtained by the employment of steel, better adapts the conductor to the making of curves and enables the many suspension-wires to be reduced in number, a few holes 0 being made in the web I), as shown in Fig. 6, to receive an eye with nut to get a pull-oft for straining around corners.

It will be readily understood that the steel portion may be of any cross-section desiredsuch as round, Fig. 1; a web or rail-section, Figs. 2 and 3, or an angle or channelsection, Figs. 4 and 5- according to the number or position of longitudinal, edges required for the taking of current by the trolleyor trolleys.

Any of the existing methods of suspension may be adopted.

I declare that what I claim is 1. .A trolley-wire or flexible suspended conductor for electric traction, consisting of a steel portion with a conducting-surface of copper formed upon it throughout its length but not wholly envelopingit, the steel portion being flexible and having a cross-section adapted to bed into and retain the copper sur' face upon it, substantially as described.

2. A trolley-wire or suspended conductor for electric traction, consisting of copper and steel portions of equal length, secured together in a longitudinal manner the steel portion having the form of a web flexible laterally but not vertically and adapted to bed edgewise into the copper, substantially as described.

3. A trolley-wire or suspended conductor for electric traction, consisting of a flexible steel portion, having a cross-section adapted to produce longitudinal edges,and a conducting-surface of copper formed upon said longitudinal edges, substantially as described.

4.. A trolley-wire or suspended conductor for electric traction, consisting of a flexible steel portion formed with longitudinal edges having each a rounded rail-like head and a conducting-surface of copper formed upon and embracing said longitudinal edges, substantially as described.

5. A trolley-wire or suspended conductor for electric traction, consisting of copper and steel portions of equal length secured together in a longitudinal manner,the steel portion being flexible and having the formof a web with thickened edges adapted to bed into and be embraced by the copper,substantially as described.

In witness whereof I have hereunto signed my name, this 25th day of May, 1901, inthe presence of two subscribing witnesses.

GEORGE EDWARD HEYI -DIA.

\Vitnesses:

FRANK E. ALLEN, SIDNEY W. D01). 

